initial POC

2024-06-04 22:46:09 +02:00
commit d3a672694f
12 changed files with 781 additions and 0 deletions
--- a/internal/db/db.go
+++ b/internal/db/db.go
@@ -0,0 +1,155 @@
+package db
+
+import (
+	"fmt"
+	"log"
+
+	"git.asperti.com/paspo/mail-autoconfig/internal/config"
+	"github.com/jmoiron/sqlx"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+var (
+	dbStructure []string
+)
+
+var DB *sqlx.DB
+
+func init() {
+	dbStructure = []string{
+		`CREATE TABLE IF NOT EXISTS domains (
+			domain VARCHAR PRIMARY KEY,
+			display_name VARCHAR,
+			display_shortname VARCHAR,
+			imap_enabled BOOL,
+			imap_server VARCHAR,
+			imap_port INT,
+			imap_ssl BOOL,
+			imap_spa BOOL,
+			pop3_enabled BOOL,
+			pop3_server VARCHAR,
+			pop3_port INT,
+			pop3_ssl BOOL,
+			pop3_spa BOOL,
+			smtp_enabled BOOL,
+			smtp_server VARCHAR,
+			smtp_port INT,
+			smtp_ssl BOOL,
+			smtp_tls BOOL,
+			smtp_spa BOOL,
+			pop_before_smtp BOOL,
+			domain_required BOOL);`,
+	}
+}
+
+func InitDB() error {
+	var err error
+
+	DB, err = sqlx.Open("sqlite3", config.AppConfig.DBPath)
+	if err != nil {
+		return err
+	}
+
+	for _, stmt := range dbStructure {
+		_, err = DB.Exec(stmt)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func DoiooooDELME() {
+	var err error
+	sqlStmt := `
+	create table foo (id integer not null primary key, name text);
+	delete from foo;
+	`
+	_, err = DB.Exec(sqlStmt)
+	if err != nil {
+		log.Printf("%q: %s\n", err, sqlStmt)
+		return
+	}
+
+	tx, err := DB.Begin()
+	if err != nil {
+		log.Fatal(err)
+	}
+	stmt, err := tx.Prepare("insert into foo(id, name) values(?, ?)")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer stmt.Close()
+	for i := 0; i < 100; i++ {
+		_, err = stmt.Exec(i, fmt.Sprintf("こんにちは世界%03d", i))
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	err = tx.Commit()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	rows, err := DB.Query("select id, name from foo")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var id int
+		var name string
+		err = rows.Scan(&id, &name)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println(id, name)
+	}
+	err = rows.Err()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	stmt, err = DB.Prepare("select name from foo where id = ?")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer stmt.Close()
+	var name string
+	err = stmt.QueryRow("3").Scan(&name)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println(name)
+
+	_, err = DB.Exec("delete from foo")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	_, err = DB.Exec("insert into foo(id, name) values(1, 'foo'), (2, 'bar'), (3, 'baz')")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	rows, err = DB.Query("select id, name from foo")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var id int
+		var name string
+		err = rows.Scan(&id, &name)
+		if err != nil {
+			log.Fatal(err)
+		}
+		fmt.Println(id, name)
+	}
+	err = rows.Err()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+}